Siemens MC55 - page 418

MC55 AT Command Set
16.16 AT^SNFTTY s
m obil e
MC55_ATC_V01.05 Page 418 of 469 2/10/04
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Parameter Description
0 Audio path is in normal speech mode.
1 Audio path is in TTY/CTM mode.
Note
• Requirements for using TTY/CTM features:
- TTY/CTM functionality requires audio mode 5 or 6 with all audio parameters set to their factory default.
To do so, first enter the AT^SNFS command to select audio mode 5, then use AT^SNFI and AT^SNFO to
restore the default values. Alternatively, factory defaults of a ll audio parameters in audio modes 2 - 6 can
easily be set with AT^SNFD.
- Depending on which audio interface the CTM device is con nected to, you may need to select the correct
settings with AT^SAIC.
<state>(num)